{"id":47207,"date":"2021-08-27T14:54:36","date_gmt":"2021-08-27T12:54:36","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=47207"},"modified":"2021-11-15T11:42:03","modified_gmt":"2021-11-15T09:42:03","slug":"seminaire-a-liemn-microstreaming-around-acoustically-excited-bubbles-anime-par-sarah-cleve-universite-de-twente-pays-bas","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/actualites\/seminaire-a-liemn-microstreaming-around-acoustically-excited-bubbles-anime-par-sarah-cleve-universite-de-twente-pays-bas.html","title":{"rendered":"Seminar: Microstreaming around acoustically excited bubbles"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mxvdmv-3cd530dde68929689f287b382d1cc8e9\">\n.flex_column.av-mxvdmv-3cd530dde68929689f287b382d1cc8e9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-mxvdmv-3cd530dde68929689f287b382d1cc8e9 av_one_full  avia-builder-el-0  avia-builder-el-no-sibling  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-ksucx3x4-e84c5cfc54e41ca1fe8f896a6c9b9d11'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4 style=\"text-align: center;\">\u00a0<b>Microstreaming around acoustically excited bubbles<\/b><\/h4>\n<hr \/>\n<blockquote>\n<h5>Sarah CLEVE<br \/>\nfrom the Physics of Fluids group at University of Twente (The Netherlands)<\/h5>\n<p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-37etgn-c26268f857c5995d5bb6bdf8ca6be5ba\">\n.av_font_icon.av-37etgn-c26268f857c5995d5bb6bdf8ca6be5ba .av-icon-char{\nfont-size:20px;\nline-height:20px;\n}\n<\/style>\n<span  class='av_font_icon av-37etgn-c26268f857c5995d5bb6bdf8ca6be5ba avia_animate_when_visible av-icon-style- avia-icon-pos-left av-no-color avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue836' data-av_iconfont='entypo-fontello' ><\/span><\/span><strong>Le 8 Septembre 2021 \u00e0 13h30<\/strong><\/p>\n<p>Salle du Conseil \u2013 Laboratoire central de l\u2019IEMN \u2013 Villeneuve d\u2019Ascq<\/p>\n<\/blockquote>\n<h6>Summary:<\/h6>\n<p>\u00ab\u00a0Microbubbles which are used in medical ultrasound applications are known to induce microstreaming, a relatively slow mean flow with respect to the fast bubble oscillations. While microstreaming and its associated shear stresses are commonly agreed to play a role in the permeabilization of cell membranes, a detailed understanding of the induced flows is still missing. To acquire basic physical knowledge, my experimental work focused on the characterization of microstreaming induced around an air bubble in water, more precisely around a single acoustically trapped and excited, nonspherically oscillating bubble. For this, I correlated experimentally recorded microstreaming patterns to the time-resolved bubble dynamics. The surprisingly large number of pattern types can be classified to gather understanding of the physical mechanisms involved. The bubble size and the dominant surface mode number play an important role in the definition of the pattern types, but my analysis also revealed further parameters to take into account. In order to confirm the experimental findings, an analytical model has been developed and shows good agreement with the experimental results.\u00a0\u00bb<\/p>\n<p>Contact: <div  class='avia-button-wrap av-rpqvoq-3cb3c5961636b217d226d267b137f501-wrap avia-button-left  avia-builder-el-3  el_after_av_font_icon  avia-builder-el-last'><a href='mailto:michael.baudoin@univ-lille.fr'  class='avia-button av-rpqvoq-3cb3c5961636b217d226d267b137f501 av-link-btn avia-icon_select-yes-left-icon avia-size-small avia-position-left avia-color-silver'   aria-label=\"michael.baudoin@univ-lille.fr\"><span class='avia_button_icon avia_button_icon_left' aria-hidden='true' data-av_icon='\ue805' data-av_iconfont='entypo-fontello'><\/span><span class='avia_iconbox_title' >michael.baudoin@univ-lille.fr<\/span><\/a><\/div><\/p>\n<\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":47222,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-47207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/47207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=47207"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/47207\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media\/47222"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=47207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=47207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=47207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}